diff options
Diffstat (limited to 'core/certmanager.lua')
| -rw-r--r-- | core/certmanager.lua | 101 |
1 files changed, 58 insertions, 43 deletions
diff --git a/core/certmanager.lua b/core/certmanager.lua index e820c914..dc22bb46 100644 --- a/core/certmanager.lua +++ b/core/certmanager.lua @@ -1,7 +1,7 @@ -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain --- +-- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- @@ -12,6 +12,7 @@ local ssl = ssl; local ssl_newcontext = ssl and ssl.newcontext; local tostring = tostring; +local pairs = pairs; local type = type; local io_open = io.open; @@ -30,68 +31,82 @@ end module "certmanager" -- Global SSL options if not overridden per-host -local default_ssl_config = configmanager.get("*", "ssl"); -local default_capath = "/etc/ssl/certs"; -local default_verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none"; -local default_options = { "no_sslv2", "no_sslv3", luasec_has_noticket and "no_ticket" or nil }; -local default_verifyext = { "lsec_continue", "lsec_ignore_purpose" }; +local global_ssl_config = configmanager.get("*", "ssl"); + +local core_defaults = { + capath = "/etc/ssl/certs"; + protocol = "sslv23"; + verify = (ssl and ssl.x509 and { "peer", "client_once", }) or "none"; + options = { "no_sslv2", "no_sslv3", luasec_has_noticket and "no_ticket" or nil }; + verifyext = { "lsec_continue", "lsec_ignore_purpose" }; + curve = "secp384r1"; + ciphers = "HIGH:!DSS:!aNULL@STRENGTH"; +} +local path_options = { -- These we pass through resolve_path() + key = true, certificate = true, cafile = true, capath = true, dhparam = true +} if ssl and not luasec_has_verifyext and ssl.x509 then -- COMPAT mw/luasec-hg - for i=1,#default_verifyext do -- Remove lsec_ prefix - default_verify[#default_verify+1] = default_verifyext[i]:sub(6); + for i=1,#core_defaults.verifyext do -- Remove lsec_ prefix + core_defaults.verify[#core_defaults.verify+1] = core_defaults.verifyext[i]:sub(6); end end -if luasec_has_no_compression and configmanager.get("*", "ssl_compression") ~= true then - default_options[#default_options+1] = "no_compression"; -end if luasec_has_no_compression then -- Has no_compression? Then it has these too... - default_options[#default_options+1] = "single_dh_use"; - default_options[#default_options+1] = "single_ecdh_use"; + core_defaults.options[#core_defaults.options+1] = "single_dh_use"; + core_defaults.options[#core_defaults.options+1] = "single_ecdh_use"; + if configmanager.get("*", "ssl_compression") ~= true then + core_defaults.options[#core_defaults.options+1] = "no_compression"; + end end function create_context(host, mode, user_ssl_config) - user_ssl_config = user_ssl_config or default_ssl_config; + user_ssl_config = user_ssl_config or {} + user_ssl_config.mode = mode; if not ssl then return nil, "LuaSec (required for encryption) was not found"; end - if not user_ssl_config then return nil, "No SSL/TLS configuration present for "..host; end - - local ssl_config = { - mode = mode; - protocol = user_ssl_config.protocol or "sslv23"; - key = resolve_path(config_path, user_ssl_config.key); - password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; - certificate = resolve_path(config_path, user_ssl_config.certificate); - capath = resolve_path(config_path, user_ssl_config.capath or default_capath); - cafile = resolve_path(config_path, user_ssl_config.cafile); - verify = user_ssl_config.verify or default_verify; - verifyext = user_ssl_config.verifyext or default_verifyext; - options = user_ssl_config.options or default_options; - depth = user_ssl_config.depth; - curve = user_ssl_config.curve or "secp384r1"; - ciphers = user_ssl_config.ciphers or "HIGH:!DSS:!aNULL@STRENGTH"; - dhparam = user_ssl_config.dhparam; - }; + + if global_ssl_config then + for option,default_value in pairs(global_ssl_config) do + if not user_ssl_config[option] then + user_ssl_config[option] = default_value; + end + end + end + for option,default_value in pairs(core_defaults) do + if not user_ssl_config[option] then + user_ssl_config[option] = default_value; + end + end + user_ssl_config.password = user_ssl_config.password or function() log("error", "Encrypted certificate for %s requires 'ssl' 'password' to be set in config", host); end; + for option in pairs(path_options) do + if type(user_ssl_config[option]) == "string" then + user_ssl_config[option] = resolve_path(config_path, user_ssl_config[option]); + end + end + + if not user_ssl_config.key then return nil, "No key present in SSL/TLS configuration for "..host; end + if not user_ssl_config.certificate then return nil, "No certificate present in SSL/TLS configuration for "..host; end -- LuaSec expects dhparam to be a callback that takes two arguments. -- We ignore those because it is mostly used for having a separate -- set of params for EXPORT ciphers, which we don't have by default. - if type(ssl_config.dhparam) == "string" then - local f, err = io_open(resolve_path(config_path, ssl_config.dhparam)); + if type(user_ssl_config.dhparam) == "string" then + local f, err = io_open(user_ssl_config.dhparam); if not f then return nil, "Could not open DH parameters: "..err end local dhparam = f:read("*a"); f:close(); - ssl_config.dhparam = function() return dhparam; end + user_ssl_config.dhparam = function() return dhparam; end end - local ctx, err = ssl_newcontext(ssl_config); + local ctx, err = ssl_newcontext(user_ssl_config); - -- COMPAT: LuaSec 0.4.1 ignores the cipher list from the config, so we have to take - -- care of it ourselves... - if ctx and ssl_config.ciphers then + -- COMPAT Older LuaSec ignores the cipher list from the config, so we have to take care + -- of it ourselves (W/A for #x) + if ctx and user_ssl_config.ciphers then local success; - success, err = ssl.context.setcipher(ctx, ssl_config.ciphers); + success, err = ssl.context.setcipher(ctx, user_ssl_config.ciphers); if not success then ctx = nil; end end @@ -100,9 +115,9 @@ function create_context(host, mode, user_ssl_config) local file = err:match("^error loading (.-) %("); if file then if file == "private key" then - file = ssl_config.key or "your private key"; + file = user_ssl_config.key or "your private key"; elseif file == "certificate" then - file = ssl_config.certificate or "your certificate file"; + file = user_ssl_config.certificate or "your certificate file"; end local reason = err:match("%((.+)%)$") or "some reason"; if reason == "Permission denied" then @@ -125,7 +140,7 @@ function create_context(host, mode, user_ssl_config) end function reload_ssl_config() - default_ssl_config = configmanager.get("*", "ssl"); + global_ssl_config = configmanager.get("*", "ssl"); end prosody.events.add_handler("config-reloaded", reload_ssl_config); |